My imessages to a specific person that I text daily all of a sudden doesn't say delivered when I try to send a message to him. He doesn't have me blocked, because we were just texting now all of a sudden my messages aren't delivering. I reset my phone and turned my imessage on and off but nothing seems to work. I never had this problem before and now I don't know what to do. If anyone has had this problem before and has a solution for this problem, please let me know.